EZP-27324: Proper media/binary uri is now shown & generated for old content versions

[ViniTou]

Question	Answer
JIRA issue	EZP-27324
Bug/Improvement	yes
New feature	no
Target version	7.5
BC breaks	no
Tests pass	no
Doc needed	no

TODO:

• Implement feature / fix a bug.
• Implement tests.
• Fix new code according to Coding Standards ($ composer fix-cs).
• Ask for Code Review.

[micszo]

On eZ Platform EE 2.5 there is a regression when creating a draft from the latest version.

Steps:
0. Start with a clean session after applying the changes.

1. Create a CT with ezmedia and ezbinaryfile fields.
2. Create a CI using that CT.
3. Upload a valid video and e.g. pdf file.
4. Publish.
5. Enter edit mode.
6. Examine media and file fields.

Actual result: On the media field there's a constant spinner. On the file field when trying to preview a redirect to login happens.

[lserwatka]

@micszo Let's merge this one, and fill a new ticket. @ViniTou will have a look. This PR is blocking work in 3.1.

[micszo]

@lserwatka ok 😄 🙈
I will create a ticket shortly.

[micszo]

Ticket for the above issue: https://jira.ez.no/browse/EZP-31639.